HCID 59263325, compound → HCID 11998467, compound

HRID 545938Notes

Reaction equation

HRID 545938 reaction equation
C([O:8][CH2:9][CH2:10][CH2:11][N:12]1[C:20]2[C:15](=[CH:16][CH:17]=[CH:18][CH:19]=2)[C:14]2([C:24]3=[CH:25][C:26]4[O:30][CH2:29][O:28][C:27]=4[CH:31]=[C:23]3[O:22][CH2:21]2)[C:13]1=[O:32])C1C=CC=CC=1.[H][H]>CO.[Pd]>[OH:8][CH2:9][CH2:10][CH2:11][N:12]1[C:20]2[C:15](=[CH:16][CH:17]=[CH:18][CH:19]=2)[C:14]2([C:24]3=[CH:25][C:26]4[O:30][CH2:29][O:28][C:27]=4[CH:31]=[C:23]3[O:22][CH2:21]2)[C:13]1=[O:32]

Participants

5

Reactant 2

HCID 59263325HCID 59263325, compoundHCID 178418361HCID 178418361, compound

Product 1

HCID 11998467HCID 11998467, compoundYield 98%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 887MethanolSolvent

Procedure

A suspension of 1′-[3-(benzyloxy)propyl]spiro[furo[2,3-f][1,3]benzodioxole-7,3′-indol]-2′(1′H)-one (6.27 g, 14.5 mmol) and 10% Pd/C (0.5 g) in MeOH (150 mL) was hydrogenated under the normal pressure of hydrogen overnight and filtered through a pad of celite. The filtrate was concentrated in vacuo to dryness. The residue was crystallized from ether to yield the title compound (4.82 g) as a white solid in 98% yield: 1H NMR (300 MHz, CDCl3) δ 7.38-6.93 (m, 4H), 6.49 (s, 1H), 6.10 (s, 1H), 4.87 (m, 1H), 4.63 (m, 1H), 4.01-3.81 (m, 2H), 3.62 (t, 2H), 2.89 (br, 1H), 1.99-1.91 (m, 2H); 13C NMR (75 MHz, CDCl3) δ 178.8, 156.0, 148.9, 142.4, 142.1, 132.3, 129.0, 128.9, 124.1, 123.9, 119.0, 108.6, 103.0, 101.5, 93.6, 80.4, 58.3, 37.8, 29.8; MS (ES+) m/z 340.2 (M+1).

Workup

  1. filtrationfiltered through a pad of celite
  2. concentrationThe filtrate was concentrated in vacuo to dryness
  3. customThe residue was crystallized from ether

Sources & evidence

ORD record
ord-e22361ccf08f400c87dacec770e22397
Source dataset
uspto-grants-2011_05
Patent number
US07935721B2

Reaction notes

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